Breaking Apart A String Into Individual Values
Jan 24, 2010
I am very new to VB, and am programming in VB 2008 express. Sorry if this thread is in the wrong spot I need to add two 40 digit numbers together and was thinking that the simplest way to do it would be to input them as a string and then convert the string to a single dimensional array where x(1) is the 1st digit in the number, and x(30) is the 30th digit, etc. I would do the same for the other number where y(1) is the 1st digit. I would then add the x(40) and y(40) (which are the last digits of the number) together and carry the remainder into the next addition (39th digit, 38, ...)
[Code]...
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Apr 3, 2009
I am a beginner and trying to learn. My problem is I am trying to break down a string for a part number. The string looks like" ABCD259A8755" . I need to separate it to sections like ABCD, 2, 5, 9, A, 8, 75, 5,
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Mar 26, 2011
I have a string STR="CYHZ 262338Z 2700/2724 27012G22KT P6SM BKN040 TEMPO 2700/2710 5SM -SHSN BKN015 BECMG 2702/2704 28015G25KT FM271000 28018G28KT P6SM BKN040 BECMG 2722/2724 27012KT RMK NXT FCST BY 270300Z"
I want to put the new line characher before these words in the string(TEMPO, BECMG, FM, RMK) so that the output string look like this
[Code]...
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Jun 21, 2010
Ok, sorry to be so needy this week! Here is the situation. I have discovered how to do a linq query to get my data from my xml but when I return it as a string to a list box it is coming in as one large line. No breaks.
Here is the xml:
- <record>
<jurisdiction>VA Circuit</jurisdiction>
[code].....
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Feb 20, 2012
When trying to register a new user on the server, the server will post back messages such as "OK" and "usernameTaken". Upon comparing this returned string with another string (to perform an action based on the returned value), the compare isn't working.
Dim backupX As New CBackup
backupX.startSocket("127.0.0.1", 8888)
Dim str1 As String = backupX.registerUser("user1", "testpass")
Dim str2 As String = "usernameTaken"
[code]....
Looks to be like the socket code is working just fine.. each Function returns the corresponding Functions' Return value (registerUser -> SocketSendAndReceiveMSG -> sendAndReceiveMSG -> receiveMSG).
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Jun 30, 2011
i have a column that i want to select from a table called style_number
each entry is listed as "something-stylenumber"
is there a way to strip everything from the - and to the left from the string when it is returned from mysql?
SELECT style_number FROM table1
I do not want to have to use vb.net to edit the returned string for each line that is pulled
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Mar 19, 2012
A brief about the foundation of the program: I have created a VB2010 Windows Form application that connects to a Microsoft Access database. A datagridview is used to show all the data of the database. Then, a filter is used to filter the dataview (the BindingSource actually) and show the filtered db's data.
Let's say this is how I filter my BindingSource:
MyBindingSource.Filter = " price > '110' "
This would cause the dataGridView to filter the data (correctly), and let's say 10 rows are now displayed. What I am trying to do now is to get the sum of the values of one column of these new data. For example each of the 10 rows have a 'price' column which contains a double value. I would need the sum of these *filtered* values.
I found on the Internet that I may be able to transform the BindingSource into a DataTable and I could, but now I don't know how to access the values inside this!
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Oct 2, 2011
I am learning vb.net and I am having trouble wrapping my head around the following... I can create several properties of a custom class and get/set values or I can create a method to set them all at once. If each property is going to allow read and write should I just make a method to assign values all at once? I assume that I am missing a very important piece here. Example: I can create 2 properties:
[Code]...
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Mar 11, 2010
It's a list of computer systems, basically, that the user can purchase.I need to read this file, line-by-line, into an array. Let's call this array csvline().The first line of the text file would stored in csvline(0). Line two would be stored in csvline(1). And so on.(I've started with zero because that's where VB starts its arrays). A drop-down list would then enable the user to select 1, 2 or 3 (or however many lines/systems are stored in the file). Upon selecting a number - say, 1 - csvline(0) would be displayed inside a textbox (textbox1, let's say). If 2 was selected, csvline(1) would be displayed, and so on.
It's not the formatting I need help with, though; that's the easy part. I just need someone to help teach me how to read a CSV file line-by-line, putting each line into a string array - csvlines(count) - then increment count by one so that the next line is read into another slot.So far, I've been able to paste the numbers of each system into an combobox:
Using csvfileparser As New Microsoft.VisualBasic.FileIO.TextFieldParser _
("F:folderprogramnameprogramnameinDebugsystems.csv")
Dim csvalue As String()
[code].....
But this only selects individual values. I need to figure out how selecting one of these numbers in the combobox can trigger textbox1 to be appended with just that line (I can handle the formatting, using the string.format stuff). If I try to do this using csvalue = csvtranslator.ReadLine , I get the following error message:"Error 1 Value of type 'String' cannot be converted to '1-dimensional array of String'."If I then put it as an array, ie: csvalue() = csvtranslator.ReadLine , I then get a different error message:"Error 1 Number of indices is less than the number of dimensions of the indexed array.
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Jul 11, 2011
So I have a code atm that has 2 combo boxes, one to select the make, then it will enable the model, I have 3 model choices, here's code: [code] Once I have selected my model of the car, it takes me to that specific form with a picture of that model, I then want to display individual parts, with individual prices that will add up in a text box above.
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Aug 9, 2011
I have the following function,
Dim results() As Object = Me.Invoke("webdirect", New Object() {Company, LocationCode, CustomerNumber, OrderNumber, OrderRef, OrderDate, WebLines})
o_Company = CType(results(1),System.Nullable(Of Integer))
o_LocationCode = CType(results(2),String)
o_CustomerNumber = CType(results(3),String)
[Code] .....
So the return type of this function is a string, but I would like to get it back to its original form so I can access the individual sections i.e. o_LocationCode,o_CustomerNumber, etc how can I do that ?
Entire functions looks like this
Public Function webdirect(<System.Xml.Serialization.XmlElementAttribute(IsNullable:=true)> ByVal Company As System.Nullable(Of Integer), <System.Xml.Serialization.XmlElementAttribute(IsNullable:=true)> ByVal LocationCode As String, <System.Xml.Serialization.XmlElementAttribute(IsNullable:=true)> ByVal CustomerNumber As String,
[Code] .....
Called like this
Dim returnArray As String
returnArray = client.webdirect(10, "123", "123", "123", "147", "2011-11-1", webLinesArray, 10, "", "", "", "", "", webRespArray)
No errors on run time but the string seems to be just blank, thats why i was wondering how I convert the string back to the array so I can access the individual elements.
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Apr 2, 2010
I've got myself a CSV file with the following contents:
1,The Compact,1.8GHz,1024MB,160GB,440
2,The Medium,2.4GHz,1024MB,180GB,500
3,The Workhorse,2.4GHz,2048MB,220GB,650
It's a list of computer systems, basically, that the user can purchase.I need to read this file, line-by-line, into an array. Let's call this array csvline().The first line of the text file would stored in csvline(0). Line two would be stored in csvline(1). And so on. (I've started with zero because that's where VB starts its arrays). A drop-down list would then enable the user to select 1, 2 or 3 (or however many lines/systems are stored in the file). Upon selecting a number - say, 1 - csvline(0) would be displayed inside a textbox (textbox1, let's say). If 2 was selected, csvline(1) would be displayed, and so on.
It's not the formatting I need help with, though; that's the easy part. I just need someone to help teach me how to read a CSV file line-by-line, putting each line into a string array - csvlines(count) - then increment count by one so that the next line is read into another slot.So far, I've been able to paste the numbers of each system into an combobox:
Using csvfileparser As New Microsoft.VisualBasic.FileIO.TextFieldParser _
("F:folderprogramnameprogramnameinDebugsystems.csv")
Dim csvalue As String()[code]......
But this only selects individual values. I need to figure out how selecting one of these numbers in the combobox can trigger textbox1 to be appended with just that line (I can handle the formatting, using the string.format stuff). If I try to do this using csvalue = csvtranslator.ReadLine , I get the following error message:
"Error 1 Value of type 'String' cannot be converted to '1-dimensional array of String'."
If I then put it as an array, ie: csvalue() = csvtranslator.ReadLine , I then get a different error message:"Error 1 Number of indices is less than the number of dimensions of the indexed array."
Structure systemstructure
Dim number As Byte
Dim name As String[code]............
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Oct 20, 2011
I have an old ClickOnce program, which has been replaced by a new one I wrote, and I am aware that some people are still using the old one.I want to somehow remotely remove it from every computer where it is still being used (there are far too many to manually find them).
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Mar 17, 2011
I have an Input box that allows users to enter their full name. How do I break this input apart into first and last name to display tham into seperate boxes?
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Feb 16, 2010
I am running a simple DO loop that I would like to run until terminated by a button click event. But, once the loop is running, all events of all controls in my form are ignored.How can I have a button click event break the loop?
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Mar 24, 2009
I am needing aid in breaking words apart, and entering the one by one into a web browser at a random delay between one and five seconds each. I am downling my words into a textbox, and they all have spaces inbetween How can I enter these one by one, and at random times into my built in Webbrowser.
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Feb 27, 2009
I hve a date selected from a calendar
I would like to break it down into its component parts i.e. Day, Month Year and assign them each to a variable
I have it in Excel
as
mydate = sOps.Range("G3")
'Convert the date in to string format
myday = Day(mydate)
[Code].....
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Sep 2, 2009
I am working on a project and the code for FORMS1.vb has become quite large, 20K lines.How can I break this down into more managable pieces. I have tried Modules but I get multiple reference errorsd when I move like all of the reporting code to a module. The report code has nothing to do with the forms other than being able to call that code from an object on the form.
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Dec 12, 2008
Bulk Insert is only breaking every other row. I've tried every ROWTERMINATOR I can think of, but none of them will break all lines. I've even tried to break it on exact text, and it won't break it on that exact text. I've attached a pic and circled what appears to be the line break that it refuses to recognize as a line break. When I open it up in notepad, it recognizes it as a line break.
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Mar 16, 2009
HiI'm trying to get a multi-line, word-wrap enabled rich text box to display text with non-breaking spaces in. For example, '20 000' should always appear as one word, not split onto the next line.I've tried {20'a0 000}, 20{'a0 }000, {20~000}, {20emdash 000} and so on. Nothing seems to work.During my searching, I did see a suggestion somewhere that the DLL that the rich text box is based on doesn't support non-breaking characters.
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May 17, 2012
I'm converting a asp.net application from .NET 2.0 to .NET 3.5 I have loads of inline code like so:
Dim Total = 0
for each dr as DataRow in dt.Rows
Total = Total + dr("SumOfAmount")
next
Response.Write(FormatCurrency(Total,2))
Notice that there is no explicit type declaration of the total variable.This code worked fine under .NET 2.0 Under .NET 3.5, the Total variable is defined as an Integer, therefore the total is being rounded to the nearest dollar on every pass.I know one solution is just to change
Dim Total = 0
to either
Dim Total as decimal = 0
or
Dim Total = 0D
However I'd prefer to not have to visit every page in the system looking for this problem.Is there any site wide, or page wide option I can set the change this behavior back to the way it was under .NET 2.0?
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Apr 10, 2009
I have used the openfiledialog on numerous occasions, and it has never caused a problem. (This is also happening to savefiledialog as well...) Put simply, its breaking my application..
Code:
Private Sub LoadMapToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles LoadMapToolStripMenuItem.Click
[CODE]...
Even this bare minimum code, is causing most of my application to stop working. I have an onpaint method which should be drawing my map, it starts throwing exceptions(file not found), I checked my paths they are correct, I have a listbox linked to a picturebox, clicking a image' name in the listbox, loads the corresponding image to my picturebox, this stops working too..The program isn't hung, I can navigate my listbox, open menu's etc,.. It's breaking everything that has to do with images. I would post code, but, it's quite extensive, and the problem seems to be centered on the opensave dialogs.. (again, I have used this same code without trouble, so many times I have lost count, I'm at a loss as to why its acting up now...) Well, for now I created my own open file dialog, its a little crude compared to the real one, but, mine works..(ie, a standard dialog control, Ok, Cancel, with a ListBox loading the file names..)
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Dec 6, 2007
In Visual Studio 2005 or 2008, when adding any User Controls to a Windows Form or other User Control in a Project that implements and is using a custom settings provider, a "Failed to create component" error is displayed. If all references to the custom settings provider are removed from settings.settings and that file is saved then User Controls can be added to Windows Forms and User Controls. However, if the custom settings provider is referenced again in settings.settings, then opening the designer of a Form/Control which includes a User Control results in a "One or more errors encountered while loading the designer..." error message.
I have had a very difficult time in tracking down the root cause of this issue because I assumed it had to do with my code and not the IDE. I am working within the context of a large project which uses User Controls heavily and have written a custom settings provider to persist user settings to a SQL Express database. This settings provider works properly, however if I want to open any Forms or User Controls in designer view I must first manually remove all references to my custom settings provider in setting.settings and then re-add them after the changes are done which is inconvenient to say the least. This problem is not present if the Project is in C#.
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Jul 12, 2011
so i have a file that i need to read in vb.net. Each line is 32 chars long and each line consists of multiple fields. Meaning from char 1 to 9 it idicates ID then char 10 indicates an identifier,11-14 indicates a value field. I've looked at Readblock and it's not the tool for the job. Is there a way to break up each line into its respective fields other than just reading the whole line and breaking it up as a string?
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Dec 21, 2011
I've reached the end of my project but I have several unused and not needed .xsd files from trial and error of linking my program to a database. I want to clean up a bit and get rid of them while keeping only the essential files attached to this program. I tried deleting the .xsd files but it seems too ingrained into the program to the point where the program has several errors and just breaks. I have to manually restore the files from the Recycle Bin to get the program to start working again.
What are other solutions to get these files out of the project? I thought about clicking "Exclude From Project" but am afraid of the consequences. I figured I'd check with someone here before taking action.
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Apr 11, 2008
I want to modify this function to populate an array with each item in the database.I have tried various options, but I just can't get it to work
Private Function ConnectMe() As DataTable
Dim conn As String = "Server=192.168.0.36;Port=3306;Database=wswc;Uid=r oot;Pwd=Jack"
Dim cmd As String = "SELECT * FROM st_users"
[code]....
Instead of fill, I want to one by one add it to the dataset and also an array?
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Sep 12, 2010
When trying to use Try/Catch in my code the INSERT statement does not work, but when I comment out the Try/Catch it works fine with no error. The section of my code is below:
[Code]...
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Sep 20, 2009
my goal was to have a string generator that runs through all possible values of a string eg.
Possible values:
abcd
Chars that need to be filled:
**
Outcome:
aa
ab
ac
[code]....
(I have cut out a section where it tries to write it to a doc file. (just the writting))What I was wondering is how would I improve several parts of this code?
1. The speed - Already In a background worker (I will write a delegate soon )
2. The chars that can be used with it because this only allows the preset ones I would like to be able to use other ones like � or Chinese chars etc.
3. general Code.
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Feb 3, 2012
I am trying to use string.format on a url to pass several values into the string. It's probably a simple error but I cannot get the following code to work. It doesn't even build the string.
Public Sub getStockData()
Dim client As New WebClient()
Dim url As String
[code]....
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Jun 10, 2011
I am trying to get input from user then convert it into specific format and hold it in new variable. here is my code
[Code]...
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